Don’t load envmap

It starts much faster now!

src/bin/minitracer/main.rs

@@ -2,7 +2,7 @@ use std::error::Error;
 
 use glam::uvec2;
 use raytracing3::present::{self, Presenter};
-use raytracing3::scene::{load_envmap, Renderer, SceneParams};
+use raytracing3::scene::{Renderer, SceneParams};
 use winit::{
 	event::{Event, WindowEvent},
 	event_loop::EventLoop,
@@ -21,13 +21,12 @@ fn main() {
 		.unwrap();
 
 	let (device, queue, surface) = pollster::block_on(init_gpu(window)).unwrap();
-	let envmap = load_envmap(&device, &queue);
 	queue.submit([]);
 
 	let output_format = wgpu::TextureFormat::Bgra8UnormSrgb;
 	let hdr_format = wgpu::TextureFormat::Rgba16Float;
 	let scene = SceneParams::new(N_SPHERES);
-	let renderer = Renderer::new(&device, envmap);
+	let renderer = Renderer::new(&device);
 	let presenter = Presenter::new(&device, output_format);
 
 	let mut frame = 0;

src/bin/rec.rs

@@ -8,7 +8,7 @@ use std::{fs, io};
 use glam::{uvec2, UVec2};
 use image::buffer::ConvertBuffer;
 use raytracing3::present::{self, Presenter};
-use raytracing3::scene::{load_envmap, Renderer, SceneParams};
+use raytracing3::scene::{Renderer, SceneParams};
 
 const SIZE: UVec2 = uvec2(1920, 1080);
 const FRAME_RATE: u32 = 60;
@@ -82,7 +82,6 @@ fn do_work(img_sender: async_channel::Sender<Frame>, start_frame: u32, stop_fram
 	let img_sender = Arc::new(img_sender);
 
 	let (device, queue) = pollster::block_on(init_gpu()).unwrap();
-	let envmap = load_envmap(&device, &queue);
 	queue.submit([]);
 
 	let texsize = wgpu::Extent3d {
@@ -95,7 +94,7 @@ fn do_work(img_sender: async_channel::Sender<Frame>, start_frame: u32, stop_fram
 	let hdr_format = wgpu::TextureFormat::Rgba16Float;
 
 	let scene = SceneParams::new(N_SPHERES);
-	let renderer = Renderer::new(&device, envmap);
+	let renderer = Renderer::new(&device);
 	let presenter = Presenter::new(&device, output_format);
 
 	println!("Rendering...");

src/scene.rs

@@ -1,5 +1,5 @@
 use crate::anim::{self, SphereParams};
-use crate::trace::{self, Tracer, TracerData, TracerEnv};
+use crate::trace::{self, Tracer, TracerData};
 use glam::{mat3, uvec2, vec3, UVec2, Vec3};
 use image::ImageReader;
 use std::f32::consts::PI;
@@ -33,15 +33,13 @@ const CAMERA_LAG: f32 = 0.03;
 
 pub struct Renderer {
 	tracer: Tracer,
-	env: TracerEnv,
 }
 
 impl Renderer {
-	pub fn new(device: &wgpu::Device, env: wgpu::TextureView) -> Self {
+	pub fn new(device: &wgpu::Device) -> Self {
 		let hdr_format = wgpu::TextureFormat::Rgba16Float;
 		let tracer = Tracer::new(&device, hdr_format);
-		let env = TracerEnv::new(&device, &tracer, &env);
-		Self { tracer, env }
+		Self { tracer }
 	}
 }
 
@@ -114,7 +112,6 @@ impl Renderer {
 		self.tracer.render(
 			&mut render_pass.0,
 			&data,
-			&self.env,
 			trace::Params {
 				max_reflections: 3,
 				min_strength: 0.1,

src/trace.rs

@@ -119,10 +119,6 @@ pub struct TracerData {
 	bindings: wgpu::BindGroup,
 }
 
-pub struct TracerEnv {
-	bindings: wgpu::BindGroup,
-}
-
 static SHADER: &str = include_str!("trace.wgsl");
 
 impl Tracer {
@@ -150,30 +146,9 @@ impl Tracer {
 				count: None,
 			}],
 		});
-		let envmap_bgl = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
-			label: None,
-			entries: &[
-				wgpu::BindGroupLayoutEntry {
-					binding: 0,
-					visibility: wgpu::ShaderStages::FRAGMENT,
-					ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
-					count: None,
-				},
-				wgpu::BindGroupLayoutEntry {
-					binding: 1,
-					visibility: wgpu::ShaderStages::FRAGMENT,
-					ty: wgpu::BindingType::Texture {
-						sample_type: wgpu::TextureSampleType::Float { filterable: true },
-						view_dimension: wgpu::TextureViewDimension::Cube,
-						multisampled: false,
-					},
-					count: None,
-				},
-			],
-		});
 		let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
 			label: None,
-			bind_group_layouts: &[&spheres_bgl, &envmap_bgl],
+			bind_group_layouts: &[&spheres_bgl],
 			push_constant_ranges: &[wgpu::PushConstantRange {
 				stages: wgpu::ShaderStages::FRAGMENT,
 				range: 0..mem::size_of::<ParamsData>() as u32,
@@ -258,7 +233,6 @@ impl Tracer {
 		&self,
 		pass: &mut wgpu::RenderPass,
 		data: &TracerData,
-		env: &TracerEnv,
 		params: Params,
 		viewport: Viewport,
 		aperture: Aperture,
@@ -275,7 +249,6 @@ impl Tracer {
 		);
 		pass.set_vertex_buffer(0, self.view_buf.slice(..));
 		pass.set_bind_group(0, &data.bindings, &[]);
-		pass.set_bind_group(1, &env.bindings, &[]);
 		pass.draw(0..4, 0..1);
 	}
 }
@@ -299,24 +272,3 @@ impl TracerData {
 		Self { bindings }
 	}
 }
-
-impl TracerEnv {
-	pub fn new(device: &wgpu::Device, tracer: &Tracer, view: &wgpu::TextureView) -> Self {
-		let sampler = device.create_sampler(&wgpu::SamplerDescriptor::default());
-		let bindings = device.create_bind_group(&wgpu::BindGroupDescriptor {
-			label: None,
-			layout: &tracer.pipeline.get_bind_group_layout(1),
-			entries: &[
-				wgpu::BindGroupEntry {
-					binding: 0,
-					resource: wgpu::BindingResource::Sampler(&sampler),
-				},
-				wgpu::BindGroupEntry {
-					binding: 1,
-					resource: wgpu::BindingResource::TextureView(view),
-				},
-			],
-		});
-		Self { bindings }
-	}
-}

src/trace.wgsl

@@ -36,8 +36,6 @@ struct Varying {
 
 var<push_constant> params: Params;
 @group(0) @binding(1) var<storage, read> spheres: array<Sphere>;
-@group(1) @binding(0) var env_sampler: sampler;
-@group(1) @binding(1) var env_texture: texture_cube<f32>;
 
 @vertex
 fn on_vertex(in: Vertex) -> Varying {